The Low Load Diesel (LLD) was installed at the Denham Power Station in May 2003 .

ENGINE:   Detroit Series 60, 12.7 l

ALTERNATOR:   Stamford alternator

The LLD is a specially configured diesel generator and control system capable of operating at very low loading rate to increase the wind penetration rate to the wind turbines at the Denham Power Station.

  The electronic fuel injection of the diesel Series 60 engine means the genset can respond faster to high transient loads than conventional diesel engines.

  By supplying required power or absorbing excess power from the grid the LLD System maintains isochronous frequency control.

  Excess system capacity is dissipated through an electric water heater connected to the jacket water system of the engine and controlled by Powercorp Dynamic Grid Interface (DGI).

  Wind penetrations in the order of 60 - 70% are now being consistently achieved at Denham. This increase has resulted in substantial savings in diesel fuel costs and lower green house gas emissions.